An automatically adjusted truss welding device

Abstract

The present invention discloses an automatically adjustable truss welding device, which belongs to the technical field of steel bar truss production. The device includes a frame, a first adjustment mechanism, a circular electrode, a second adjustment mechanism, and a lower electrode head. The first adjustment mechanism includes a transverse moving frame and a longitudinal moving frame. The transverse moving frame can slide on the frame along a first direction, and the longitudinal moving frame can slide on the transverse moving frame along a second direction, where the second direction is perpendicular to the first direction. The circular electrode is detachably connected to the longitudinal moving frame. The second adjustment mechanism includes a support and a driver arranged on the support. The support is detachably connected to the longitudinal moving frame and the angle between them is adjustable. The lower electrode head is arranged at the output end of the driver and is located outside the truss. The driver can drive the lower electrode head to move linearly. The cooperation between the circular electrode and the lower electrode head can adapt to trusses of different models, with a wide range of applications. Moreover, the automatic adjustment improves production efficiency, reduces labor costs, and saves time and effort.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar truss production, and particularly to an automatically adjustable truss welding device. Background Art

[0002] At present, in the construction of industries such as buildings, railways, and bridges, in order to improve the bonding strength of concrete, steel bar trusses are usually embedded in concrete. The shapes of steel bar trusses include triangles, squares, etc. For example, the triangular truss Figures 1 to 3 as shown, includes an upper chord bar 101 and two lower chord bars 102. The upper chord bar 101 and the lower chord bars 102 are welded together with a web bar 103 bent into a wavy shape, and the cross-section is triangular.

[0003] Figure 1 For the PC truss as shown, the welding position is at the wavy points, that is, the bending points of the web bar 103 are the welding points. Figure 2 And Figure 3 For the floor slab truss as shown, the welding position is at a certain distance above the bottom surface of the web bar 103 where the lower chord bar 102 is higher, and the two points where it intersects with the web bar 103 are the two welding points for the lower welding of the floor slab truss. During welding, the electrode 100 needs to be located at the welding point. For trusses with different heights, diameters, and pitches, the position of the electrode 100 needs to be adjusted.

[0004] In the existing lower welding device, when converting between PC trusses and floor slab trusses, the electrode 100 is manually raised by a certain height and fixed with a backing plate; when the width of the truss changes, the electrode 100 with a different width is replaced; when the pitch of the truss changes, it is manually adjusted as a whole to find the corresponding welding position. The above manual adjustment has low efficiency, high labor costs, and is time-consuming and laborious. In addition, the electrode 100 is a consumable part and needs to be replaced after being used for a period of time. Frequent replacement of the electrode 100 not only affects efficiency but also incurs high costs. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatically adjustable truss welding device to solve the technical problems of low efficiency of manually adjusting the electrode, high labor costs, being time-consuming and laborious, and low efficiency and high costs caused by frequent replacement of the electrode in the prior art.

[0006] With the above concept, the technical solution adopted by the present invention is as follows:

[0007] An automatically adjustable truss welding device, comprising:

[0008] A frame;

[0009] The first adjustment mechanism includes a lateral moving frame and a longitudinal moving frame. The lateral moving frame can slide on the frame along a first direction, and the longitudinal moving frame can slide on the lateral moving frame along a second direction perpendicular to the first direction.

[0010] The circular electrode is detachably connected to the longitudinal moving frame. The first adjustment mechanism can drive the circular electrode to be located between two lower chord bars to weld the lower chord bar and the web bar.

[0011] The second adjustment mechanism includes a support and a driver arranged on the support. The support is detachably connected to the longitudinal moving frame and the angle between the support and the longitudinal moving frame is adjustable.

[0012] The lower electrode head is arranged at the output end of the driver and is located outside the truss. The driver can drive the lower electrode head to move linearly to weld the upper chord bar and the web bar.

[0013] Wherein, a trapezoidal electrode seat is arranged on the longitudinal moving frame. There are two circular electrodes, and the two circular electrodes are respectively located on opposite sides of the trapezoidal electrode seat.

[0014] Wherein, the length of the trapezoidal electrode seat is less than the diameter of the circular electrode.

[0015] Wherein, a first insulating plate is arranged between the trapezoidal electrode seat and the longitudinal moving frame.

[0016] Wherein, it further includes a first fastener, and the circular electrode is connected to the longitudinal moving frame through the first fastener.

[0017] Wherein, there are two lower electrode heads, and a set of the second adjustment mechanism is provided corresponding to each lower electrode head. The two lower electrode heads are symmetrically arranged on both sides of the circular electrode.

[0018] Wherein, a first arc surface is arranged on the longitudinal moving frame, and a second arc surface capable of cooperating with the first arc surface is arranged on the support. The support can rotate relative to the longitudinal moving frame.

[0019] Wherein, it further includes a second fastener. A long slot is arranged on the longitudinal moving frame, and a threaded hole is arranged on the support. The second fastener can pass through the long slot and lock with the threaded hole.

[0020] Wherein, it further includes a movable electrode seat. The lower electrode head is arranged on the movable electrode seat. A connecting plate is arranged at the output end of the driver. The movable electrode seat is connected to the connecting plate through a second insulating plate.

[0021] Wherein, guide rails are arranged on the frame, sliders are arranged on the transverse moving frame, and the sliders are in sliding fit with the guide rails.

[0022] Advantages of the present invention:

[0023] The automatic adjustment truss welding equipment proposed by the present invention has the frame playing a supporting role. The first adjustment mechanism enables the circular electrode to be adjustable in the horizontal and vertical directions, and thus can accurately shift between two lower chord bars. The second adjustment mechanism enables the position of the lower electrode head to be adjustable, and thus can accurately weld the upper chord bar and the web bar. The cooperation between the circular electrode and the lower electrode head can adapt to different types of trusses, with a wide range of applications. Moreover, the automatic adjustment improves production efficiency, reduces labor costs, and saves time and effort. Since the circular electrode is detachable from the longitudinal moving frame, after partial wear of the circular electrode, the circular electrode can be detached and rotated by a certain angle and then reinstalled for use, which is convenient for adjustment. The circular electrode can be reused multiple times, reducing costs. Description of the drawings

[0024] Figure 1 is the front view of an existing PC truss;

[0025] Figure 2 is the front view of an existing floor slab truss;

[0026] Figure 3 is Figure 2 the side view of

[0027] Figure 4 is the front view of the automatic adjustment truss welding equipment provided by the embodiment of the present invention;

[0028] Figure 5 is Figure 4 the top view of the automatic adjustment truss welding equipment of

[0029] Figure 6 is Figure 4 the schematic view in the A direction of

[0030] Figure 7 is Figure 4 the schematic view in the B direction of

[0031] Figure 8 is Figure 6 the schematic view in the C direction of

[0032] Figure 9 is the schematic view of a partial structure of the automatic adjustment truss welding equipment provided by the embodiment of the present invention.

[0033] In the figure:

[0034] 100, electrode; 101, upper chord bar; 102, lower chord bar; 103, web bar;

[0035] 10. Frame; 11. Longitudinal support pipe; 12. Transverse support pipe;

[0036] 21. Transverse moving frame;

[0037] 22. Longitudinal moving frame; 221. Horizontal plate; 222. Vertical plate; 223. First support plate; 224. Second support plate; 225. U-shaped groove; 226. First arc surface; 227. Long strip hole;

[0038] 23. Transverse driver; 24. Transverse moving rod; 25. Longitudinal driver; 26. Longitudinal moving rod;

[0039] 30. Circular electrode;

[0040] 31. Trapezoidal electrode seat; 32. First insulating plate; 33. First fastener;

[0041] 41. Support; 411. Second arc surface; 42. Driver; 43. Connecting plate; 44. Second insulating plate; 45. Second fastener;

[0042] 50. Lower electrode head;

[0043] 51. Movable electrode seat; 52. Electrode pressure plate; 53. Transformer; 54. Wire;

[0044] 61. Guide rail; 62. Slide block; 63. Guide post. Detailed implementation mode

[0045] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation of the present invention.

[0046] In the description of the present invention, unless otherwise clearly specified and defined, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0047] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly under and obliquely under the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0048] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0049] See Figures 4 to 9 , an automatically adjustable truss welding device is provided in an embodiment of the present invention, which includes a frame 10, a first adjusting mechanism, a circular electrode 30, a second adjusting mechanism and a lower electrode head 50. The frame 10 plays a supporting role. The first adjusting mechanism is used to adjust the position of the circular electrode 30 so that the circular electrode 30 can be located between two lower chord bars 102 to weld the lower chord bar 102 and the web bar 103; the second adjusting mechanism is used to adjust the position of the lower electrode head 50 so that the lower electrode head 50 can weld the upper chord bar 101 and the web bar 103.

[0050] The first adjusting mechanism includes a transverse moving frame 21 and a longitudinal moving frame 22. The transverse moving frame 21 can slide on the frame 10 along a first direction, and the longitudinal moving frame 22 can slide on the transverse moving frame 21 along a second direction, and the second direction is perpendicular to the first direction; the circular electrode 30 is detachably connected to the longitudinal moving frame 22, so that the position of the circular electrode 30 in the horizontal and vertical directions can be adjusted, and thus it can accurately shift between two lower chord bars 102.

[0051] Since the circular electrode 30 is detachably connected to the longitudinal moving frame 22, after part of the circular electrode 30 is worn, the circular electrode 30 can be detached and rotated by a certain angle and then reinstalled for use, which is convenient for adjustment. The circular electrode 30 can be reused multiple times, reducing costs. Specifically, during welding, the circular electrode 30 contacts the welding point on the truss. After wear, the surface of the circular electrode 30 becomes uneven. After rotating the position of the circular electrode 30, the flat surface of the circular electrode 30 faces the welding point, and it can be used again.

[0052] The second adjusting mechanism includes a support 41 and a driver 42 disposed on the support 41. The support 41 is detachably connected to the longitudinal moving frame 22 and the angle therebetween is adjustable; the lower electrode head 50 is disposed at the output end of the driver 42 and is located outside the truss. The driver 42 can drive the lower electrode head 50 to move linearly. The second adjusting mechanism enables the position of the lower electrode head 50 to be adjusted, so that the upper chord bar 101 and the web bar 103 can be accurately welded.

[0053] The circular electrode 30 and the lower electrode head 50 cooperate to adapt to different models of trusses, with a wide range of applications. Moreover, the automatic adjustment improves production efficiency, reduces labor costs, and saves time and effort.

[0054] Specifically, the frame 10 includes a longitudinal support pipe 11 and a transverse support pipe 12. The longitudinal support pipe 11 is perpendicularly connected to the transverse support pipe 12, which can be connected by welding or bolts. Of course, the frame 10 can also be set in other shapes, which is not limited herein.

[0055] A guide rail 61 is provided on the frame 10, and a slider 62 is provided on the transverse moving frame 21. The slider 62 is slidably engaged with the guide rail 61, making the transverse moving frame 21 move smoothly. Specifically, the guide rail 61 is disposed on the transverse support pipe 12, and the extending direction of the guide rail 61 is parallel to the first direction. There are two guide rails 61 to make the support more stable. Two sliders 62 are spaced apart corresponding to each guide rail 61. Among them, the first direction is parallel to the length direction of the truss.

[0056] The automatically adjustable truss welding equipment further includes a transverse driving mechanism for driving the transverse moving frame 21 to move. The transverse driving mechanism includes a transverse driver 23 and a transverse moving rod 24. The transverse driver 23 is fixedly connected to the frame 10, and the transverse moving rod 24 connects the transverse driver 23 and the transverse moving frame 21. The transverse driver 23 can drive the transverse moving frame 21 to move linearly through the transverse moving rod 24.

[0057] The transverse driver 23 can be a cylinder, and the corresponding transverse moving rod 24 is the telescopic rod of the cylinder. The transverse moving frame 21 is hinged to the telescopic rod; the transverse driver 23 can also be a motor, and the corresponding transverse moving rod 24 is a lead screw. The transverse moving frame 21 is threadedly connected to the lead screw.

[0058] The automatically adjustable truss welding equipment further includes a longitudinal driving mechanism for driving the longitudinal moving frame 22 to move. The longitudinal driving mechanism includes a longitudinal driver 25 and a longitudinal moving rod 26. The longitudinal driver 25 is fixedly connected to the transverse moving frame 21, and the longitudinal moving rod 26 connects the longitudinal driver 25 and the longitudinal moving frame 22. The longitudinal driver 25 can drive the longitudinal moving frame 22 to move linearly through the longitudinal moving rod 26.

[0059] The longitudinal driver 25 can be a cylinder, and the corresponding longitudinal moving rod 26 is the telescopic rod of the cylinder. The longitudinal moving frame 22 is hinged to the telescopic rod. The longitudinal driver 25 can also be a motor, and the corresponding longitudinal moving rod 26 is a lead screw. The longitudinal moving frame 22 is threadedly connected to the lead screw.

[0060] A guide post 63 is arranged between the longitudinal moving frame 22 and the transverse moving frame 21. One end of the guide post 63 is fixedly connected to the longitudinal moving frame 22. The guide post 63 is slidably connected to the transverse moving frame 21. A guide hole is formed in the transverse moving frame 21, and the guide post 63 is inserted into the guide hole. The cooperation between the guide post 63 and the guide hole plays a guiding role, making the movement of the longitudinal moving frame 22 stable.

[0061] A trapezoidal electrode seat 31 is arranged on the longitudinal moving frame 22. There are two circular electrodes 30, and the two circular electrodes 30 are respectively located on opposite sides of the trapezoidal electrode seat 31. The trapezoidal electrode seat 31 is convenient for fitting the space between the two lower chord bars 102. The two circular electrodes 30 are respectively welded to the two lower chord bars 102 and the corresponding web bars 103, and the welding efficiency is high.

[0062] Specifically, circular grooves are arranged on the two waist surfaces of the trapezoidal electrode seat 31, and the circular electrodes 30 are located in the circular grooves. The circular electrodes 30 are connected to the longitudinal moving frame 22 through first fasteners 33. The first fasteners 33 can be screws. When disassembling the circular electrodes 30, just screw the screws, which is convenient for installation and disassembly.

[0063] The length of the trapezoidal electrode seat 31 is less than the diameter of the circular electrode 30, so that each part of the circular electrode 30 can be in full contact with the welding point. Specifically, the length direction of the trapezoidal electrode seat 31 is parallel to the first direction.

[0064] The longitudinal moving frame 22 includes a cross plate 221 and a vertical plate 222. The cross plate 221 is connected to the longitudinal moving rod 26 and the guide post 63. The vertical plate 222 is vertically connected to the cross plate 221. A first support plate 223 and a second support plate 224 are arranged on the cross plate 221. The first support plate 223 is arranged perpendicular to the cross plate 221, and the second support plate 224 is arranged parallel to the cross plate 221 and connected to the first support plate 223.

[0065] A U-shaped groove 225 is formed in the vertical plate 222 to facilitate the truss to pass through. The second support plate 224 passes through the U-shaped groove 225, and the second support plate 224 is connected to the vertical plate 222 through a rib plate.

[0066] The trapezoidal electrode seat 31 is arranged on the second support plate 224. A first insulating plate 32 is arranged between the trapezoidal electrode seat 31 and the longitudinal moving frame 22, that is, the first insulating plate 32 is arranged between the trapezoidal electrode seat 31 and the second support plate 224.

[0067] There are two lower electrode heads 50. For each lower electrode head 50, a set of second adjustment mechanisms is provided. The two lower electrode heads 50 are symmetrically arranged on both sides of the circular electrode 30. The two lower electrode heads 50 are respectively welded to two upper chord bars 101 and the corresponding web bars 103, and the welding efficiency is high. Specifically, the two lower electrode heads 50 are symmetrically arranged on both sides of the trapezoidal electrode seat 31.

[0068] Specifically, the lower electrode head 50 and the second adjustment mechanism are both arranged on the vertical plate 222, and the two sets of second adjustment mechanisms are symmetrically arranged on both sides of the U-shaped groove 225.

[0069] A first arc surface 226 is arranged on the longitudinal moving frame 22, and a second arc surface 411 that can cooperate with the first arc surface 226 is arranged on the support 41. The support 41 can rotate relative to the longitudinal moving frame 22. A long slot 227 is arranged on the longitudinal moving frame 22, and a threaded hole is arranged on the support 41. The second fastener 45 can pass through the long slot 227 and be locked with the threaded hole. Since the support 41 is rotatable, the long slot 227 is arc-shaped.

[0070] When adjusting the angle of the support 41, remove the second fastener 45, rotate the support 41 so that the second arc surface 411 rotates relative to the first arc surface 226. After rotating to the appropriate angle, lock the second fastener 45.

[0071] Optionally, one end of the support 41 is hinged to the longitudinal moving frame 22, and the other end is locked with the longitudinal moving frame 22 through the second fastener 45, which can also realize the angle adjustment of the support 41.

[0072] Specifically, one side of the support 41 abuts against the vertical plate 222, and a driver 42 is arranged on the other side of the support 41. The driver 42 can be a cylinder and is used to drive the lower electrode head 50 to move linearly.

[0073] The automatically adjustable truss welding equipment further includes a movable electrode seat 51. The lower electrode head 50 is arranged on the movable electrode seat 51. A connecting plate 43 is arranged at the output end of the driver 42. The movable electrode seat 51 and the connecting plate 43 are connected through a second insulating plate 44.

[0074] Specifically, a right-angle groove is arranged on the movable electrode seat 51, and the lower electrode head 50 is arranged in the right-angle groove.

[0075] The automatically adjustable truss welding equipment further includes a transformer 53 and a wire 54. The transformer 53 is fixedly connected to the cross plate 221. One end of the wire 54 is connected to the transformer 53, and the other end is connected to the movable electrode seat 51.

[0076] Optionally, an electrode pressing plate 52 is arranged on one side of the lower electrode head 50. The electrode pressing plate 52 is fixed on the movable electrode seat 51 and is used to press the lower electrode head 50.

[0077] The above-mentioned automatically adjusted truss welding equipment can be adjusted conveniently and quickly when the width, pitch, with or without anchor feet of the truss are changed.

[0078] For a PC truss (a truss without anchor feet), when the width changes, that is, the distance between two lower chord bars 102 changes, it is necessary to adjust the angle of the lower electrode head 50 and the height of the circular electrode 30. Adjusting the angle of the lower electrode head 50 is also to adjust the angle of the support 41. Loosen the second fastener 45, rotate the support 41 upward or downward, and lock the second fastener 45 after adjustment. Adjusting the height of the circular electrode 30 is also to adjust the position of the longitudinal moving frame 22 in the vertical direction. The longitudinal driver 25 can drive the longitudinal moving frame 22 to move linearly through the longitudinal moving rod 26.

[0079] Since the welding point positions of the PC truss and the floor-bearing truss are different, it is necessary to adjust the height of the circular electrode 30 when converting between the PC truss and the floor-bearing truss.

[0080] When the pitch of the truss changes, it is necessary to adjust the lateral position of the circular electrode 30, that is, to adjust the position of the longitudinal moving frame 22 in the horizontal direction. The lateral moving frame 21 can be driven to move linearly by the lateral driver 23 driving the lateral moving rod 24. In Figure 4 P represents the pitch of the truss.

[0081] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatically adjustable truss welding device, characterized in that, it includes: a frame (10); a first adjustment mechanism, including a transverse moving frame (21) and a longitudinal moving frame (22), the transverse moving frame (21) can slide on the frame (10) along a first direction, the longitudinal moving frame (22) can slide on the transverse moving frame (21) along a second direction, and the second direction is perpendicular to the first direction; the first direction is the horizontal direction, and the second direction is the vertical direction; a circular electrode (30), detachably connected to the longitudinal moving frame (22), and the first adjustment mechanism can drive the circular electrode (30) to be located between two lower chord bars (102) to weld the lower chord bar (102) and the web bar (103); a second adjustment mechanism, including a support (41) and a driver (42) arranged on the support (41), the support (41) is detachably connected to the longitudinal moving frame (22) and the angle between the support (41) and the longitudinal moving frame (22) is adjustable; a lower electrode head (50), arranged at the output end of the driver (42) and located outside the truss, and the driver (42) can drive the lower electrode head (50) to move linearly to weld the upper chord bar (101) and the web bar (103); a trapezoidal electrode seat (31) is arranged on the longitudinal moving frame (22), there are two circular electrodes (30), and the two circular electrodes (30) are respectively located on opposite sides of the trapezoidal electrode seat (31); it further includes a first fastener (33), and the circular electrode (30) is connected to the longitudinal moving frame (22) through the first fastener (33).

2. The automatically adjustable truss welding device according to claim 1, characterized in that, the length of the trapezoidal electrode seat (31) is less than the diameter of the circular electrode (30).

3. The automatically adjustable truss welding device according to claim 1, characterized in that, a first insulating plate (32) is arranged between the trapezoidal electrode seat (31) and the longitudinal moving frame (22).

4. The automatically adjustable truss welding device according to claim 1, characterized in that, there are two lower electrode heads (50), and a set of the second adjustment mechanism is arranged corresponding to each lower electrode head (50), and the two lower electrode heads (50) are symmetrically arranged on both sides of the circular electrode (30).

5. The automatically adjustable truss welding device according to claim 1, characterized in that, a first arc surface (226) is arranged on the longitudinal moving frame (22), a second arc surface (411) capable of cooperating with the first arc surface (226) is arranged on the support (41), and the support (41) can rotate relative to the longitudinal moving frame (22).

6. The automatically adjustable truss welding device according to claim 5, characterized in that, It further includes a second fastener (45). A long slot (227) is provided on the longitudinal moving frame (22), and a threaded hole is provided on the support (41). The second fastener (45) can pass through the long slot (227) and be locked with the threaded hole.

7. The automatically adjustable truss welding equipment according to claim 1, characterized in that it further includes a movable electrode seat (51). The lower electrode head (50) is provided on the movable electrode seat (51). A connecting plate (43) is provided at the output end of the driver (42). The movable electrode seat (51) and the connecting plate (43) are connected by a second insulating plate (44).

8. The automatically adjustable truss welding equipment according to any one of claims 1-7, characterized in that a guide rail (61) is provided on the frame (10), a slider (62) is provided on the transverse moving frame (21), and the slider (62) is slidably matched with the guide rail (61).

Images